Adding a serial port (voids warranty)

Device disassembly

Locating the UART

the exposed UART pads are for R_UART These pads correspond to PL2/3 , and doesn't provide output under stock android , but works with mainline u-boot and mainline kernel , UART pads are located very near the SoC on the upper right corner , see the photo .
please refer to UART howto for more information